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Message no. 1
From: "J.W.Thomas" <cm5323@***.AC.UK>
Subject: Glass
Date: Tue, 6 Sep 1994 17:10:44 +0100
If you want smart stuff to fit out your corp facility , use one
way bullet proof glass.
You can shoot straight through it one way, but not the other!!!
(i saw this on TV.18mm of plastic stopped a 9mm FMJ at less than
5m one way, and passed straight through the other!)
The glass is 10mm of polycarbonate, 8mm of acrlyic.
polycarbonate is soft but tough. Acrylic is hard but brittle.
If you hit the Acrylic side, its compressed and so stays hard,
stopping the bullet. its pushed back onto the polycarbonate,
which bends out a little, but doesn't break. The acrlic is
shattered, and that area is weak now, but the bullet is stopped.

If you hit the polycarbonate side, the bullet punches straight
thru the soft poly carb, and hits the acrylic, pushing it out.
it shatters and the bullet passes on.

Thicker glass will stop more heavier rounds, but remember that
either way the glass gets weaker the more hits it takes.

CHOPPER
Threepence more and damn the cheesemongers!

PS. is there any SRII rules for armour weakening under impacts?
kevlar fragments under powerful blows.
maybe each hit with power>armour is -1 to armour? \IDEAS?
Message no. 2
From: Matt <mosbun@******.CC.PURDUE.EDU>
Subject: Re: Glass
Date: Tue, 6 Sep 1994 22:03:02 -0500
>PS. is there any SRII rules for armour weakening under impacts?
>kevlar fragments under powerful blows.
>maybe each hit with power>armour is -1 to armour? \IDEAS?

Yes- check FoF. I'm not sure offhand, but I think what you have there is
fairly accurate with what FASA has.

Matt
Message no. 3
From: John Moeller <John.Moeller@*.CC.UTAH.EDU>
Subject: Re: Glass
Date: Tue, 6 Sep 1994 22:42:18 -0600
On Tue, 6 Sep 1994, J.W.Thomas wrote:
> CHOPPER
> Threepence more and damn the cheesemongers!
>
> PS. is there any SRII rules for armour weakening under impacts?
> kevlar fragments under powerful blows.
> maybe each hit with power>armour is -1 to armour? \IDEAS?

Intriguing idea, that one-way glass. About the SRII rules, there are
none in the basebook, but you might try something like the NAGRL or
something along that line, which I don't have. About your rule
suggestion, I'd say that power > 2 x armor would be more appropriate.
We're talking 2055 here, and that's pretty high tech, even without
corporate paranoia.

////////////////////////////////////////////////////////////////////////////
// //
// I'm a dyslexic atheist. There is no dog. //
// //
// John Moeller <John.Moeller@*.cc.utah.edu> //
// //
////////////////////////////////////////////////////////////////////////////
Message no. 4
From: King of Pain <mcgowan@*****.BUCKNELL.EDU>
Subject: Re: Glass
Date: Wed, 7 Sep 1994 10:21:12 -0400
On Tue, 6 Sep 1994, J.W.Thomas wrote:

> If you want smart stuff to fit out your corp facility , use one
> way bullet proof glass.
> You can shoot straight through it one way, but not the other!!!
> (i saw this on TV.18mm of plastic stopped a 9mm FMJ at less than
> 5m one way, and passed straight through the other!)
> The glass is 10mm of polycarbonate, 8mm of acrlyic.
> polycarbonate is soft but tough. Acrylic is hard but brittle.
> If you hit the Acrylic side, its compressed and so stays hard,
> stopping the bullet. its pushed back onto the polycarbonate,
> which bends out a little, but doesn't break. The acrlic is
> shattered, and that area is weak now, but the bullet is stopped.
>
> If you hit the polycarbonate side, the bullet punches straight
> thru the soft poly carb, and hits the acrylic, pushing it out.
> it shatters and the bullet passes on.
>
> Thicker glass will stop more heavier rounds, but remember that
> either way the glass gets weaker the more hits it takes.
>
This is a lovely idea in principle, but it has one minor problem. What
happens when the fella with the assault rifle(or my personal favorite a
minigun) on the polycarbonate side decides to really hose the runners and
use a 10(or 15 for the minigun) bullet full auto. You are gonna turn the
glass into swiss cheese. Sort of makes transparent glass useless I'd
say. Just stick with armored glass with gunports. Its cheaper, more
effective, and a hell of a alot less expensive than buying techno glass
that get trashed every time you fire through it. Remember, as it has
been said many, many times before, a corp tries to minimize cost and
maximize security. This fire-through armored glass wouldn't be used
except in a few extremely evil places.


RDM
Message no. 5
From: Gareth Owen <glowen1@*****.NHS.GOV.UK>
Subject: Re: Glass
Date: Wed, 7 Sep 1994 16:27:25 +0100
RDM wrote:
> This is a lovely idea in principle, but it has one minor problem. What
> happens when the fella with the assault rifle(or my personal favorite a
> minigun) on the polycarbonate side decides to really hose the runners and

If he was going to fire through glass like that, he wouldn.t use a minigun,
he'd use a sniper rifle or slug firing shotgun, maybe (shot really would
be stupid).
I got the impression from seeing this stuff on TV that it was for use in
areas that you did not expect to have regular firefights in. The advantage
it has over gunports is it looks like a sheet of glass, it doesn't look
even remotely like something could slide aside to reveal a gunport.

Take it easy guys

GLO

--
Gareth Owen | Mail: glowen1@*****.nhs.gov.uk
Message no. 6
From: MILLIKEN DAMION A <u9467882@***.EDU.AU>
Subject: Re: Glass
Date: Thu, 8 Sep 1994 09:48:35 +1000
Matt writes:

> >PS. is there any SRII rules for armour weakening under impacts?
> >kevlar fragments under powerful blows.
> >maybe each hit with power>armour is -1 to armour? \IDEAS?
>
> Yes- check FoF. I'm not sure offhand, but I think what you have there is
> fairly accurate with what FASA has.

Yep, its close to what FASA (still no $) has:

ARMOUR DEGREDATION

For the sake of simplified bookkeeping, SRII ignored the effects of armour
degredation. The following rule takes armour degredation into account.

A character who takes a Moderate wound or greater damage from a non-Stun
attack suffers armour damage. The armour loses 1 point for every multiple of
its appropriate value represented by the Power of the attack. For example, a
character wearing an armoured jacket takes a hit from a submachine gun burst
with a damage code of 10S. The jacket has a Ballistic Rating of 5. If the
character takes at least Moderate damage, the attack permanently reduces the
rating of the armour by 2 points.

This rule also applies to Impact armour. Hardened body or vehicle armour
(but not critter armour) degrades at the same rate.

And thats it. The only thing I don't see is just why the target has to take
a Mod to lose armour. The damage a person takes is determined by their Bod
(among other things), and this has jack all to do with the degredation of
armour. Ah well, thats SR for you. :-)

--
Damion Milliken University of Wollongong e-mail: u9467882@***.edu.au

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Further Reading

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